Lightstreamer(http://www.lightstreamer.com/) is a high-performance push/streaming engine based on the AJAX-Comet paradigm that delivers real-time textual data to Web browsers and to thick applications.
I found their documents all over the place so I decided to aggregate all the steps we need to follow in one place.
To test and see how lightstreamer wroks
1- download MODERATO from http://www.lightstreamer.com/download/
Lightstreamer Moderato edition can be used for free even in production environments and does not require any license key. http://www.lightstreamer.com/ls-features
2- unzip downloaded folder
3- clone or download https://github.com/Lightstreamer/Lightstreamer-example-HelloWorld-client-javascript
4- you need to copy lightstreamer.js from \ Lightstreamer\DOCS-SDKs\sdk_client_web_unified\lib to \Lightstreamer-example-HelloWorld-client-javascript\src
5- edit \Lightstreamer-example-HelloWorld-client-javascript\src\index.html and change
var client = new LightstreamerClient(null,"HELLOWORLD");
to
var client = new LightstreamerClient("http://push.lightstreamer.com/", "HELLOWORLD");
6- open /Lightstreamer-example-HelloWorld-client-javascript/src/index.html in browser and you should be data getting updated
As you see above, data get pushed from http://push.lightstreamer.com/ to our html page.
Light streamer server has two responsibilities
1- host Adapters and get data from them
2- Serve Clients and send data that adapters has been provided
An Adapter is a software component that connects Light streamer Server and provides data.
A Client connects and subscribe to Light streamer Server to get the real-time data.
How to Set Light streamer Server locally on windows
1- You need a Java SE platform implementation installed on your system.
You can get the latest version from Oracle (you can choose either the
Server JRE or the JDK):
2- Open notepad in admin mode and open \Lightstreamer\bin\windows\LS.bat file and update the value of JAVA_HOME to location of your java sdk
set JAVA_HOME=C:\Program Files\Java\jdk1.8.0_102
3- in command prompt go to the \Lightstreamer\bin\windows directory and execute
"Start_LS_as_Application.bat".
4- to verify your Light streamer server is working and is listening to tcp ports, browse http://localhost:8080
Now the Light streamer server is ready to host Adapters and Clients, stop service by entering Ctrl+C in command prompt to stop service
*Update client to point to our local server
1- edit \Lightstreamer-example-HelloWorld-client-javascript\src\index.html and change
var client = new LightstreamerClient("http://push.lightstreamer.com/", "HELLOWORLD");
to
var client = new LightstreamerClient("http://localhost:8080/", "PROXY_HELLOWORLD");
*Set .Net Adapter to send data to light streamer
1- download deploy folder from https://github.com/Lightstreamer/Lightstreamer-example-HelloWorld-adapter-dotnet/releases
2- copy ProxyHelloWorld folder from \deploy\Deployment\Deployment_LS\ProxyHelloWorld and past it to \Lightstreamer\adapters
*Run server and .net adapter and client
1- in command prompt go to the \Lightstreamer\bin\windows directory and execute "Start_LS_as_Application.bat".
2- in another command prompt window go to the \deploy\Deployment\Deployment_DotNet_Server directory and execute “adapter_csharp.exe”
3- open /Lightstreamer-example-HelloWorld-client-javascript/src/index.html in browser and you should be data getting updated